Boeing’s Wiglet For B-737 Max Provides Additional 1.5 Percent Fuel Burn
By Steve Hall
May 3, 2012 - Boeing announced a new winglet design
concept for the 737 MAX. The new Advanced Technology
winglet will provide MAX customers with up to an
additional 1.5 percent fuel-burn improvement, depending
on range, on top of the 10-12 percent improvement
already offered on the new-engine variant.
"The Advanced Technology winglet demonstrates Boeing's
continued drive to improve fuel burn and the
corresponding value to the customer. With this
technology and others being built into the MAX, we will
extend our leadership," said Jim Albaugh, president and
CEO, Boeing Commercial Airplanes. "Incorporating this
advanced technology into the 737 MAX design will give
our customers even more advantage in today's volatile
fuel price environment."
Compared to today's wingtip technology, which provides
up to a 4 percent fuel-burn advantage at long ranges,
the Advanced Technology winglet provides a total
fuel-burn improvement of up to 5.5 percent on the same
"The concept is more efficient than any other wingtip device in
the single-aisle market because the effective wing span increase
is uniquely balanced between the upper and lower parts of the
winglet," said Michael Teal, chief project engineer, 737 MAX.
Boeing aerodynamicists used advanced computational fluid
dynamics to combine rake tip technology with a dual feather
winglet concept into one advanced treatment for the wings of the
737 MAX. The Advanced Technology winglet fits within today's
airport gate constraints while providing more effective span
thereby reducing drag. Ongoing 737 MAX testing in the wind
tunnel validated the new concept on the airplane.
The super-efficient design has been incorporated into the 737 MAX design and production system plans. "We have assessed the risk and understand how to leverage this new technology on the MAX within our current schedule," said Teal. "This puts us on track to deliver substantial additional fuel savings to our customers in 2017."
Airlines operating the 737 MAX now will gain an 18 percent
fuel-burn per-seat improvement over today's A320. Depending on
the range of the mission, MAX operators will realize even more
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